Shell Oil Comapny

Jacob B Roest

Jan J Bleeker

Jan H Lammers

Rudolf J Eckert

Wilhelmus J Krijnen

Jan W De Beukelaar

Henry Van Zwet

Jacob Bloemheuvel

The invention provides a process for the preparation of a polysaccharide in oil dispersion which comprises the steps of

Process for the preparation of a polysaccharide in oil dispersion and

Biopolymer formulation, in particular a polysaccharide-containing water in oil emulsion, process for preparing such emulsions and process for concentrating these emulsions. Aqueous systems thickened by the incorporation of biopolymer emulsions.

Biopolymer formulations and processes for preparing them

In conventional olefin polymerization using TiCl.sub.3 -containing Ziegler type catalysts, the catalyst-containing reaction product may be de-ashed by treatment with titanium-solubilizing compounds such as alcohols and the polymer product from the de-ashing step washed with a hydrocarbon to separate it from catalyst residue. It is desirable to treat the dirty hydrocarbon wash liquid to recover purified hydrocarbon suitable for recycle to the polymerization reaction. According to this invention the dirty hydrocarbon wash liquid is treated with an epoxy compound in the presence of an alcohol and distilled to recover purified hydrocarbon suitable for recycle.

Treatment of contaminated hydrocarbon from olefin polymerization

Growing community of inventors

Amsterdam, Netherlands

Jacob B Roest